Khalid A. Mughal is an associate professor at the Department of Informatics at the University of Bergen, Norway. During his extensive career, he has designed and implemented many courses on Java, object-oriented system development, and compiler techniques. He has also given seminars for the IT industry. He is the principal author of Java Som Forste Programmeringssprak (Java as a First Programming Language) published by Cappelen Akademisk Forlag, 2002.
Rolf W. Rasmussen is a system developer at Vizrt, a company that develops real-time graphics systems for TV, films, and the Web. Previously, he has worked on clean room implementations of the Java class libraries. He is coauthor, with Professor Mughal, of Java Som Forste Programmeringssprak.